Which of the following best describes how embryological evidence supports the idea that life changes over time?

a. some animals exhibit similar stages in embryonic development

b. some animals exhibit similar biological protiens

c. some animals exhibit structures that are no longer used for any purpose

organ system-an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.

answers are:

lysogenic     viral dna merges with host cell dna

lysogenic     no symptoms

lytic               viral dna takes over

lysogenic     virus does not destroy host cell

lytic               virus destroys host cell

lytic               induces symptoms of viral infection

lysogenic       cell reproduces and spreads provirus